[GreenKeys] Model 28. When a key is pressed, it prints multiple times

[Nick England]

Hi Tom -
If that keyboard clutch goes around more than once, the problem is in your
keyboard section, not the printer. It really sounds like the keyboard isn't
resetting properly at the end of a cycle. Check out those documents I
pointed you at. RTFM.
Other useful "how it works" manuals are at
http://www.navy-radio.com/manuals/tty/jh/ttyman3/TeletypeManuals/model28/Instructional/28_Keyboard.pdf
http://www.navy-radio.com/manuals/tty/28_pagetyper_USAF.pdf

If the keyboard reset isn't happening properly you may end up with
semi-random characters. Figs is MMMMM so all 5 of the the code bars are
engaged and then you may be more likely to not get reset happening with
FIGS hanging around for the improper multiple characters. Check out those
documents I pointed you at. RTFM.

You might be able to see the problem happening in slow-motion as you turn
the motor by hand.

When rotating by hand, after the end of a cycle you will have to disengage
the keyboard clutch manually because normal operation depends on the
momentum of the rapidly rotating clutch to disengage it. Press the clutch
shoe lever and clutch stop lug together to disengage the clutch - it'll
click into place and then you won't feel the clutch dragging.

Have patience, RTFM, and once you figure out how it is all supposed to
work, you will stand in awe at the genius of those Teletype engineers.

Good luck,
Nick

Nick England K4NYW
www.navy-radio.com

On Thu, Aug 2, 2018 at 7:49 PM, thomas baggio <bubblesdee at yahoo.ca> wrote:

> Hi Nick
>
> It is the clutch closest to the keyboard
>
> When the issue occurs, I can see this clutch go around several times Then
> The clutch stop lever catches the stop
>
> Weird thing is that it doesn’t print out the letter more than once. It
> looks like it just goes in and out of figs mode. Only one letter is printed
> and the  position of the “cursor” on the paper doesn’t advance either
>
> The problem happens most often when the FIGS button is pressed or when
> typing numbers ( which requires the Figs button to be engaged)
>
> I sincerely apologize to everyone on the list. I know my nomenclature of
> the teletype parts/conditions are ridiculous.  I am totally new to these
> things and I am self taught. Just trying to learn about teletypes.
>
> I realize that I sound like the guy who goes to the mechanic and tries to
> recreate the sound that the car makes when there is trouble.  Bare with me
> please.
>
> Long story short. Seems like the issue occurs most often when the FIGS
> button is involved.
>
> Thanks
>
> Tom
>
> Sent from my iPhone
>
> On Jul 28, 2018, at 14:32, Nick England <navy.radio at gmail.com> wrote:
>
> Thomas - When you say the clutch spins twice, are you talking about the
> clutch located near the keyboard?
> (I am assuming you have a regular 28ASR or 28KSR with mechanical keyboard
> and not a Compact 28KSR with electrical keyboard.)
>
> If it is the clutch near the keyboard then, as Ethan says, the problem is
> probably with the repeat/reset mechanism -
> Or it could be with the clutch stop lever. Description of the operation is
> here -
> http://www.navy-radio.com/manuals/tty/573-116-100TC-Iss1.pdf
>
> The adjustments info is at
> http://www.navy-radio.com/manuals/tty/573-116-700-6604.pdf
> possible trouble areas are at pages 8, 14, and 16
>
> Good luck!
> Nick England K4NYW
> www.navy-radio.com
>
> On Fri, Jul 27, 2018 at 12:05 PM, thomas baggio via GreenKeys <
> greenkeys at mailman.qth.net> wrote:
>
>> Hi
>>
>> I had submitted this question a few months ago but never did resolve the
>> issue.
>>
>> Description:  when a key is pressed, the teletype will sometimes print
>> the selected letter out twice or even three times.
>> This doesn’t happen all the time, maybe every 10 th letter or so
>>
>> I have observed the clutch while typing, when the unit double prints, the
>> clutch spins more than once.
>> When the unit prints the desired single letter, the clutch spins once are
>> expected.
>> The keys always return to their neutral position.
>>
>> Any ideas why this is happening?
>> Is there an adjustment that needs to be done?
>>
>> Sent from my iPhone
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